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1   // ========================================================================
2   // Copyright 2004-2010 Mort Bay Consulting Pty. Ltd.
3   // ------------------------------------------------------------------------
4   // All rights reserved. This program and the accompanying materials
5   // are made available under the terms of the Eclipse Public License v1.0
6   // and Apache License v2.0 which accompanies this distribution.
7   // The Eclipse Public License is available at
8   // http://www.eclipse.org/legal/epl-v10.html
9   // The Apache License v2.0 is available at
10  // http://www.opensource.org/licenses/apache2.0.php
11  // You may elect to redistribute this code under either of these licenses.
12  // ========================================================================
13  
14  package org.eclipse.jetty.server.session;
15  
16  import java.io.IOException;
17  import java.util.Random;
18  
19  import javax.servlet.ServletException;
20  import javax.servlet.http.HttpServlet;
21  import javax.servlet.http.HttpServletRequest;
22  import javax.servlet.http.HttpServletResponse;
23  import javax.servlet.http.HttpSession;
24  
25  import org.eclipse.jetty.http.HttpMethods;
26  import org.eclipse.jetty.client.ContentExchange;
27  import org.eclipse.jetty.client.HttpClient;
28  import org.testng.annotations.Test;
29  
30  
31  /**
32   * AbstractReentrantRequestSessionTest
33   *
34   *
35   */
36  
37  public abstract class AbstractReentrantRequestSessionTest
38  {
39      public abstract AbstractTestServer createServer(int port);
40  
41      @Test
42      public void testReentrantRequestSession() throws Exception
43      {
44          Random random = new Random(System.nanoTime());
45  
46          String contextPath = "";
47          String servletMapping = "/server";
48          int port = random.nextInt(50000) + 10000;
49          AbstractTestServer server = createServer(port);
50          server.addContext(contextPath).addServlet(TestServlet.class, servletMapping);
51          server.start();
52          try
53          {
54              HttpClient client = new HttpClient();
55              client.setConnectorType(HttpClient.CONNECTOR_SOCKET);
56              client.start();
57              try
58              {
59                  ContentExchange exchange = new ContentExchange(true);
60                  exchange.setMethod(HttpMethods.GET);
61                  exchange.setURL("http://localhost:" + port + contextPath + servletMapping + "?action=reenter&port=" + port + "&path=" + contextPath + servletMapping);
62                  client.send(exchange);
63                  exchange.waitForDone();
64                  assert exchange.getResponseStatus() == HttpServletResponse.SC_OK;
65              }
66              finally
67              {
68                  client.stop();
69              }
70          }
71          finally
72          {
73              server.stop();
74          }
75      }
76  
77      public static class TestServlet extends HttpServlet
78      {
79          @Override
80          protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
81          {
82              doPost(request, response);
83          }
84  
85          @Override
86          protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
87          {
88              HttpSession session = request.getSession(false);
89              if (session == null) session = request.getSession(true);
90  
91              String action = request.getParameter("action");
92              if ("reenter".equals(action))
93              {
94                  int port = Integer.parseInt(request.getParameter("port"));
95                  String path = request.getParameter("path");
96  
97                  // We want to make another request with a different session
98                  // while this request is still pending, to see if the locking is
99                  // fine grained (per session at least).
100                 try
101                 {
102                     HttpClient client = new HttpClient();
103                     client.setConnectorType(HttpClient.CONNECTOR_SOCKET);
104                     client.start();
105                     try
106                     {
107                         ContentExchange exchange = new ContentExchange(true);
108                         exchange.setMethod(HttpMethods.GET);
109                         exchange.setURL("http://localhost:" + port + path + "?action=none");
110                         client.send(exchange);
111                         exchange.waitForDone();
112                         assert exchange.getResponseStatus() == HttpServletResponse.SC_OK;
113                     }
114                     finally
115                     {
116                         client.stop();
117                     }
118                 }
119                 catch (Exception x)
120                 {
121                     throw new ServletException(x);
122                 }
123             }
124             else
125             {
126                 // Reentrancy was successful, just return
127             }
128         }
129     }
130 }